Four spectral lines with different wave length of sodium atom were selected in measuring the arc temperature by Boltzmann's Graphical Method.
试验选用了钠原子四条不同波长的谱线，用玻耳兹曼图解法求得电弧的温度。
Four spectral lines with different wave length of sodium atom were selected in measuring the arc temperature by Boltzmann's Graphical Method.
试验选用了钠原子四条不同波长的谱线，用玻耳兹曼图解法求得电弧的温度。
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